M. Tullius Cicero, Speech before Roman Citizens on Behalf of Gaius Rabirius, Defendant Against the Charge of Treason
William Blake Tyrrell, Ed.

[20] A decree of the senate was passed that Gaius Marius and Lucius Valerius, consuls, summon the tribunes of the commoners and the praetors who seemed to them suitable, and give their attention that the sovereignty and majesty of the Roman people be preserved. They summon all the tribunes of the commoners except Saturninus, the [praetors] except Glaucia. They order whoever wishes the Republic to be safe to take up weapons and follow them. All obey. From the temple of Sancus and the public armories, weapons are given to the Roman people, with the Gaius Marius, consul, overseeing the distribution.

At this juncture, to pass over the rest, I have a question for you personally, Labienus. Since Saturninus was holding the Capitolium under arms, with him were Gaius Glaucia, Gaius Saufeius, and even that Gracchus from the shackles of the workhouse, and I will add to their number, as you want it so, your uncle Quintus Labienus, and since, on the other hand, in the forum were the consuls Gaius Marius and Lucius Valerius Flaccus, and behind them, the entire senate (that senate that you yourselves, who elicit ill-will against the present day senators, [are wont to praise], so that more easily you can disparage the present senate), since the order of the knights—but what knights, immortal gods! of our fathers and of that time, who held a large part of the Republic and all the honor of the public courts—since all men of all orders who believed that on the survival of the Republic rested their own survival had taken up weapons, just what was Gaius Rabirius to do?